<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>时钟</title>
</head>
<style>
    *{
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .container{
        width: 700px;
        height: 500px;
        border: 1px solid rgb(110, 230, 45);
        border-radius: 5px;
        margin: 50px auto;
    }
    .container .clock{
        width: 250px;
        height: 250px;
        border: 1px solid rgb(27, 31, 25);
        border-radius: 50%;
        /* margin: 100px auto; */
        position: relative;
    }
    .clock ul{
        display: flex;
        justify-content: center;
        /* align-items: center; */
    }
    .clock ul li{
        position: absolute;
        left: 50%; 
        top: 50%; 
        /* transform-origin:bottom; */
        /* margin-left: -10px;
        margin-top: -10px; */
    }
    .clock ul li:nth-child(1){
       transform: rotate(0deg);
    }
    .clock ul li:nth-child(2){
       transform: rotate(30deg);
    }
    .clock ul li:nth-child(3){
       transform: rotate(90deg);
    }
</style>
<body>
    <div class="container">
        <div class="clock">
            <ul>
                <li><i>1</i></li>
                <li><i>2</i></li>
                <li><i>3</i></li>
                <!-- <li>4</li>
                <li>5</li>
                <li>6</li>
                <li>7</li>
                <li>8</li>
                <li>9</li>
                <li>10</li>
                <li>11</li>
                <li>12</li> -->
            </ul>
        </div>
    </div>
    <script>

    </script>
</body>
</html>